Provided is an information processing device that includes a gaze point calculation unit, a depth calculation unit, a display generation unit, and a drive calculation unit. The gaze point calculation unit calculates a gaze point on a virtual image reflected on a half mirror. The depth calculation unit generates depth information related to a depth of the gaze point. The display generation unit generates a display object to be superimposed on the virtual image. The drive calculation unit drives a superimposition optical system of the display object so as to allow the display object to be observed as an image having a depth corresponding to the depth information.